Martin Luther King Jr. spoke these words on December 5, 1955, at Holt Street Baptist Church in Montgomery, Alabama. Days earlier, Rosa Parks had been arrested for refusing to give up her bus seat to a white passenger. King, just 26 years old at the time, addressed the crowd at the first mass meeting of the Montgomery Bus Boycott in what was one of his first major public speeches. In the speech, King articulated a philosophy that would guide the entire Civil Rights Movement: Justice and love are not opposites but partners. He told the assembled crowd, “It is not enough for us to talk about love … There is another side called justice. And justice is really love in calculation.” It reminds us that love is not the passive acceptance of injustice; it requires, even demands, rebellion against systems and behaviors that dehumanize and oppress.